Computer Hardware User's Guide

PC store
cycle
Pipeline Conflicts
8-18
Example 8–13. Conditional Calls and Traps
Pipeline Operation
PC Fetch
Decode Read Execute
n CALL cond ———
n+1 I CALL
cond ——
n+1 (nop) (nop) CALL
cond —
n+1 (nop) (nop) (nop) CALL
cond
n+1 (nop) (nop) (nop) CALL cond
n+2/CALLaddr I (nop) (nop) (nop)
Note: I = Instruction representation